Other parties like the Maharashtra Navnirman Sena, which fought 10 seats, the Aam Aadmi Party and Bahujan Samaj Party which contested all the seats have notched a zero, and in many cases their candidates may forfeit their election deposits.

This makes it the Congress-NCP's worst-ever joint performance after it put up a winning show in 2009 (25 seats total) and 2004 (22 seats total) in Maharashtra where it has been ruling the state uninterrupted since 1999.

It is also the second time that the BJP-SS has swept Mumbai since 1996, followed by the Congress-NCP in 2009.

The results have led to a clamour within and outside the Congress for fixing responsibility for the total rout, both at the party and government levels.

Taking a cue from Congress president Sonia Gandhi and vice president Rahul Gandhi who have already owned up responsibility at the national level, at least two senior ministers - Narayan Rane and Nitin Raut - have tendered their resignations. Some others may follow suit.

Coming barely five months before the assembly elections, the drubbing is viewed as a major setback for the ruling Congress-NCP government here grappling with an image crisis and various internal and external problems.

The outcome decisively proved that the people of the state have rejected the aggressive brand of MNS chief Raj Thackeray's politics.

In contrast, the soft-spoken and mild-mannered Shiv Sena chief Uddhav Thackeray led the party to its best ever performance - bagging 19 out of 21 seats it contested - a major morale-booster for him after the death of the charismatic party supremo Bal Thackeray two years ago.

Mayawati's BSP failed to open an account in the state for the third consecutive time since 2004.

The AAP - which was widely expected to make inroads in the state where the anti-corruption movement was born along with Anna Hazare's social movement three years ago - was discarded.